Samsung S5750 Wave575 hard resetSelect Menu > Seetings > Reset
Reset various settings to the factory default values. Select which settings to reset. You must enter your device
password to reset the settings.
Use this method to hard reset your Samsung S5750 Wave575 Bada OS phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.
If you know the hard reset using buttons / keys, pls leave a comment. All comments are welcome! :)